Variations + multiplication - practice problems - page 11 of 12
Number of problems found: 228
- Seven-segmet
Lenka is amused that he punched a calculator (seven-segment display) number and used only digits 2 to 9. Some numbers have the property that She again gave their image in the axial or central symmetry some number. Determine the maximum number of three-dig - Hockey players
After we cycle, five hockey players sit down. What is the probability that the two best scorers of this crew will sit next to each other? - Training
The table contains the tennis training schedule for Saturday's younger students during the winter indoor season. Before the start of the summer season, preparing a new training schedule, Tomas Kucera will be able to practice only in the morning. Sisters K - Variations
Find the number of items when the count of variations of the fourth class without repeating is 42 times larger than the count of variations of the third class without repetition.
- Task of the year
Find the number of integers from 1 to 106 with ending four digits 2015. - Combinatorics
The city has 7 fountains. Works only 6. How many options are there that can squirt? - Numbers
How many different 4 digit natural numbers in which no digit is repeated can be composed of digits 0,1,2,3? - Seating rules
In a class, there are 24 seats, but in the 7.B class, there are only 18 students. How many ways can students sit? (The class has 12 benches. A bench is for a pair of students.) Result (large number) logarithm and thus write down as powers of 10. - Medals
How many ways can gold, silver, and bronze medals be divided among 21 contestants?
- Peak
Uphill leads 2 paths and one lift. a) How many options back and forth are there? b) How many options to get there and back by the not same path are there? c) How many options back and forth are there that we go at least once a lift? - Cars plates
How many different license plates can a country have since they use 3 letters followed by 3 digits? - Lock
A combination lock will open when the right choice of 3 numbers (from 1 to 16 inclusive) is selected. A. How many different lock combinations are possible? B. Is the combination lock named appropriately? - Coin and die
Flip a coin and then roll a six-sided die. How many possible combinations are there? - Area codes
How many 6 digit area codes are possible if the first number can't be zero?
- Vans
In how many ways can 5 shuttle vans line up at the airport? - Pairs
At the table sit 10 people, 5 on one side and 5 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit? - No. of divisors
How many different divisors have number 13 4 * 2 4? - Toys
3 children pulled 12 different toys from a box. How many ways can toys be divided so each child has at least one toy? - 7 heroes
6 heroes galloping on 6 horses behind. How many ways can we sort them behind?
How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
